public void OperationMarksRequestAsFailedAndIsPropagated() { TestTelemetryChannel.Clear(); var host = new HostingContext <SimpleService, ISimpleService>(); using ( host ) { host.Open(); ISimpleService client = host.GetChannel(); client.CallMarksRequestAsFailed(); } var request = TestTelemetryChannel.CollectedData().OfType <RequestTelemetry>().First(); Assert.IsFalse(request.Success.Value); }